On Wednesday, June 25, 2003, at 10:07  AM, Bill Studenmund wrote:

> 	Things a 1:1 would need that it doesn't have
>
> 		gdb support
> 		libpthread
> 		kernel support for mutexes and condvars

You forgot:

	* special signal handing thread goop

Signals are particularly hard to get right in the presence of threads, 
and arguably, they're much easier with SA, since signals just come as 
an upcall, like every other type of scheduling event.

         -- Jason R. Thorpe <thorpej@wasabisystems.com>